Regulator mechanism



NV 27, 1945' J. B. PARSONS yREGULATOR MEGHANISM Original Filed Jan. 50, 1943 Syvum/VIM df/zn B. Parana @M @L f (iu/www4,

Patented Nov. 27, 1945 Toledo,

Ohio, assignor` to MalolinW Fraser; Toledo; (li'ogasftrusteeV Original.` application.January.' 30, .19445; Serial` No.

Dividedl and thi's.applicaton Septem- This. inventionrelates to. regulator. mechanism particularly.. adaptedior vehiclezwindows. such. as tlose used on automobile bodiesior;operatingthe same'between openiand closedV positions.

An object is to produce a new and improved window regulator of the above type having a pair of swinging arms in the shape of bell cranks, the free ends of the arms being slidingly connected to the adjacent edge portion of the window glass and the opposite end portions being interconnected in such manner that a rectilinearly shiftable operating member may be employed for conjointly actuating said arms to impart the desired window movement.

Other objects reside in details of construction, assembly and operation hereinafter more fully described, and for purposes of illustration but not of limitation, an embodiment of the invention is shown on the accompanying drawing in which Figure 1 is a side elevation of a regulator mechanism mounted for example, in a vehicle door showing the window glass in its raised or closed position; and

Figure 2 is a view similar to Figure l, but showing the window glass in its lowered or open position.

The illustrated embodiment of the invention comprises a pair of angular arms or levers 42 and 43, hereinafter referred to as bell cranks, it being observed that the outer or free ends of the levers have studs engaging in horizontally elongate slots in retainer members depending from the window glass I2a. The angle portion of the bell crank lever 42 is connected by a pin 44 to an upright channel member 45 which is carried by a mounting plate 46. The inner end of the bell crank lever 42 is pivotally connected at 41 to the inner end portion of the bell crank lever 43 but at a point spaced slightly inwardly from the extreme end thereof. The extreme inner end of the bell crank lever 43 is pivotally connected at 48 to an actuating bar 49 which also is rectilinearly movable in a plane crosswise of or in this instance, at substantially right angles to the plane of movement of the Window glass I2a. The angle portion of the bell crank lever 43 has a stud 5l) which is slidable in the channel provided in the channel bar 45. A helical coil spring 5I has one end anchored to the bell crank lever 43 intermediate the pivotal point 41 and the stud 50. The opposite end of the spring 5| has a hook engaging the end portion of the mounting plate 46.

The outer end portion of the actuating bar 49 has rack teeth 52 with which a pinion 53 is engageabl.. It. wllbe. understood that a crank handle.v (not` shown)` may be employedforoperating, the pinionn 53,` the latter being, carried by amounting plate 5'4. Anembossed' portion 55 on..the.mounting.plate,54' provides a tongue' engaging the upper side off'tlie actuating bar 49" and a stud 56 engages the opposite side of the bar thereby to guide the longitudinal or rectilinear movement of .the bar.

In operation of the regulator mechanism above described, it will be understood that swinging movement of the bell crank levers 42 and 43 is effected in response to longitudinal movement of the bar 49 in one direction or the other thereby raising or lowering the Window glass 12a. During this movement the lever 42 swings about its pivot 44 and the stud 50 carried by the lever 43 slides vertically in the channel provided by the guide bar 45. Upon downward movement of the window glass I2a, the spring 5| is placed under tension thereby to assist in the upward movement of the window glass IZa.

The simplicity of construction and operation of this regulator is quite apparent. It can in the main be manufactured from sheet metal stampings and readily assembled preparatory to application as a unit to the vehicle body. Thus the structure lends itself admirably to economic and eicient manufacture in large scale production.

This application constitutes a division of my co-pending application Serial No. 474,108 filed January 30, 1943, and it is to be understood that changes in details of construction, arrangement and operation may be effected Without departing from the spirit of the invention especially as defined in the appended claims.

WhatI claim is:

1. Regulator mechanism for a vehicle window comprising a pair of bell crank levers each having an inner angular end portion and an outer free end portion, the free end portions being adapted for engagement for window movement, a pivotal connection between the inner end of one lever and the other lever near the inner end of the latter, a rectilinearly movable bar pivoted at one end to the inner end of said other lever, an upright guide, a pivotal connection between the angle portion of said rst bell crank lever and said guide, a stud on the angle portion of the other bell crank lever fitting said guide for `sliding movement therein, a helical tension spring engaging one bell crank lever for counterbalancing purposes, and rack and pinion means for operating said bar.

2. Regulator mechanism for a vehicle window fitting said guide for sliding movement therein,

and means to actuate said bar.

3. Regulator mechanism for a vehicle window comprising a pair' of bell crank levers each having an inner angular end portion and an outer free end portion, the free end portions being adapted for engagement for Window movement, a pivotal connection between the inner end of one lever and the other lever near the inner end of the latter, a rectilinearly movable bar pivoted at one end to the inner end of said other lever, an upright guide, a xed pivotal mounting for the angle portion of said rst bell cranky lever, a stud on the angle portion of the other bell crank lever tting said guide for sliding movement therein, a counterbalancng spring connected to one bell crank lever, and operating means connected to said rectilinearly movable bar for actuating the same.

4. Regulator mechanism for a vehicle Window comprising a pair of bell crank levers each having a relatively short inner angular end portion and an outer relatively long free end portion, the free end portion being adapted for engagement for window movement, an upright guide, a fixed pivotal mounting for the angular portion 0f one bell crank lever and said guide, a pivotal connection between the inner end of said last lever and a point adjacent the inner end of the other bell crank lever, a stud on the angular portion of said other lever tting said guide for sliding movement therein, a helical tension spring engaging the angular end portion of said other lever for counterbalancing purposes, a rectilinearly movable bar pivoted at one end to the extreme inner end of said other lever, and means for reciprocating said bar.

JOHN B. PARSONS. 

